#!/usr/bin/env/python3
# -*- coding:utf-8 -*-


' a test module '


__author__ = 'Michael Liao'

import sys


def test():
    args = sys.argv
    if(args) == 1:
        print('Hello,world!')
    elif len(args) == 2:
        print('Hello,%s!' % args[1])
    else:
        print('Too many arguments!')


if __name__ == '__main__':
    test()